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Introduce negative reductions when hash move is singular#424

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jhonnold merged 3 commits intomainfrom
lmr-se
Dec 8, 2022
Merged

Introduce negative reductions when hash move is singular#424
jhonnold merged 3 commits intomainfrom
lmr-se

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@jhonnold jhonnold commented Dec 8, 2022

Bench: 4452548

This is a play on the idea of singular quiet lmr found in stockfish.

STC

ELO   | 2.13 +- 1.71 (95%)
SPRT  | 10.0+0.10s Threads=1 Hash=8MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]
GAMES | N: 73080 W: 17185 L: 16738 D: 39157

LTC

ELO   | 3.01 +- 2.30 (95%)
SPRT  | 60.0+0.60s Threads=1 Hash=64MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]
GAMES | N: 38208 W: 8520 L: 8189 D: 21499

@jhonnold jhonnold merged commit 8cae7ac into main Dec 8, 2022
@jhonnold jhonnold deleted the lmr-se branch December 8, 2022 14:10
jhonnold added a commit that referenced this pull request Dec 18, 2022
Bench: 4452548

This is a play on the idea of singular quiet lmr found in stockfish.

STC

ELO   | 2.13 +- 1.71 (95%)
SPRT  | 10.0+0.10s Threads=1 Hash=8MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]
GAMES | N: 73080 W: 17185 L: 16738 D: 39157

LTC

ELO   | 3.01 +- 2.30 (95%)
SPRT  | 60.0+0.60s Threads=1 Hash=64MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]
GAMES | N: 38208 W: 8520 L: 8189 D: 21499
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